add my unfinished cbase

cbase/data/lists/linkedlist.h

@@ -0,0 +1,44 @@
+#ifndef LINKEDLIST_H
+#define LINKEDLIST_H
+
+typedef struct LinkedListNode {
+	void* data;
+	struct LinkedListNode* prev;
+	struct LinkedListNode* next;
+} LinkedListNode;
+
+typedef struct LinkedList {
+	LinkedListNode* nil;
+} LinkedList;
+
+LinkedList*
+new_linkedlist();
+
+LinkedListNode*
+first(LinkedList* l);
+
+LinkedListNode*
+last(LinkedList* l);
+
+void
+append(LinkedList* l, void* x);
+
+void
+insert(LinkedList* l, void* x);
+
+void
+insert_at(LinkedList* l, int i, void* x);
+
+LinkedListNode*
+search(LinkedList* l, void* x);
+
+void
+delete_item(LinkedListNode* x);
+
+void
+delete_linkedlist(LinkedList* l);
+
+int
+count_linkedlist(LinkedList* l);
+
+#endif